221988988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{4269019}}^1$

素因数の和:4269036

約数の個数: 12

約数和(自身を含む): 418363960

約数和(自身を除く): 196374972

約数列:

[1, 2, 4, 13, 26, 52, 4269019, 8538038, 17076076, 55497247, 110994494, 221988988]

約数ペア:

[(1, 221988988), (2, 110994494), (4, 55497247), (13, 17076076), (26, 8538038), (52, 4269019)]